New Lens question

Discussion in 'Australia Photography' started by - Lunacy -, Mar 2, 2009.

  1. - Lunacy -

    - Lunacy - Guest

    I'm looking for a low light lens to photograph flat subjects like linen and
    was wondering what everyone's thoughts were on the below lens to do this
    with a pentax mount .

    I don't want to be too far away from the subject as ideal distance would be
    about 50cm away I currently have a tamrom macro 90mm lens and this is too
    far away to take good shots of the subject material.

    I'm not to sure either if I should go to a zoom like the one below or a
    fixed lens, without distorting the subject .


    - Lunacy -, Mar 2, 2009
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  2. - Lunacy -

    Mr.T Guest

    How is it "too far away". The extra distance simply allows better lighting
    IMO, if the object is not *too* large.

    A flat field macro is usually what you want for "flat subjects". A wide
    angle will only make matters worse! However if the linen is very large, a
    macro or flat field lens is obviously not necessary. Maybe you could tell us
    exactly what you find wrong with the 90mm macro, the only time I use a 50mm
    macro is with a copy stand. However I do admit 90mm is not necessary with a
    1.5 crop DSLR and large objects.
    Maybe a normal 35mm lens would be your best choice?

    Mr.T, Mar 3, 2009
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  3. - Lunacy -

    - Lunacy - Guest

    a fixed 35mm might be the way but I want/need to get the best f stop
    possible a 2.8 like my 90mm would be good and the reason the 90 is too
    close is because the subject matter is 40cm away and 40cm across to make it
    feasible work environment .
    - Lunacy -, Mar 3, 2009
  4. - Lunacy -

    Mr.T Guest

    Far easier (and cheaper) to get a fixed 35mm f2.8 than a zoom then.
    Better resolution and less distortion is a definite bonus.

    Mr.T, Mar 3, 2009
  5. - Lunacy -

    Pete D Guest

    Hi F,

    I have a Pentax M50mm F2 or a Tamron adaptall 28mm F2.8 you can have if you

    Both if you want them, yours free but you pay the postage.

    You might pick one of these or similar up cheap at your local secondhand
    outlet like Trash Converters. ;-)

    Email me.


    Pete D, Mar 3, 2009
  6. - Lunacy -

    Pete D Guest

    Sorry, forgot, you could also get a set of extension tubes, this will let
    you get closer, let you do killer macros as well.

    If you really want a seriously sharp macro lens that will probably do what
    you want the best is to buy a Pentax DA35mm F2.8 macro, but as has been said
    before, they don't give you much working room.

    Pete D, Mar 3, 2009
  7. - Lunacy -

    - Lunacy - Guest

    well if your giving them away


    your email were ?
    - Lunacy -, Mar 3, 2009
  8. - Lunacy -

    Pete D Guest

    Ask RA. You know where.


    Pete D, Mar 4, 2009
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